Gambling losses are only deductible if you itemize deductions. Your gambling winnings are NJ sourced income. Since you have income from a state other than your resident state, you should indicate that in the Other State Income section which is in the Personal Info (My Info) section of TurboTax. Follow the instructions in How do I file a nonresident return? TurboTax will determine if you have a filing requirement. If you don't owe any NJ tax, don't file NJ. It will depend on how much you won.
If you do owe tax in NJ, then NY will give you a credit for tax paid to another state. So, prepare the NJ return before the resident NY return.
Do I have to file returns in more than one state?
@Kimberaja
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
